R
Pinout Descriptions
User I/Os by Bank
Table 149 and Table 150 indicate how the available user-I/O
pins are distributed between the four I/O banks on the
FG320 package.
Table 149: User I/Os Per Bank for XC3S500E in the FG320 Package
All Possible I/O Pins by Type
Package
Edge
Maximum
I/O
(1)
(1)
I/O Bank
I/O
29
INPUT
DUAL
1
VREF
CLK
Top
0
1
2
3
58
58
14
10
13
11
48
6
5
8
(2)
Right
22
21
24
0
0
0
(2)
Bottom
Left
58
17
4
58
34
5
8
TOTAL
232
102
46
20
16
Notes:
1. Some VREF and CLK pins are on INPUT pins.
2. The eight global clock pins in this bank have optional functionality during configuration and are counted in the DUAL column.
Table 150: User I/Os Per Bank for XC3S1200E and XC3S1600E in the FG320 Package
All Possible I/O Pins by Type
Package
Edge
Maximum
I/O
(1)
(1)
I/O Bank
I/O
34
INPUT
12
DUAL
1
VREF
CLK
Top
0
1
2
3
61
63
6
5
8
(2)
Right
25
12
21
24
0
0
0
(2)
Bottom
Left
63
23
11
5
63
38
12
5
8
TOTAL
250
120
47
46
21
16
Notes:
1. Some VREF and CLK pins are on INPUT pins.
2. The eight global clock pins in this bank have optional functionality during configuration and are counted in the DUAL column.
DS312-4 (v3.8) August 26, 2009
www.xilinx.com
213
Product Specification
XILINX [ XILINX, INC ]
